OEM Carrier Defrost Control Board HK32EA001 for Model PH10JA024000AGAA

This is the genuine OEM factory-replacement defrost control board for the Carrier PH10JA024000AGAA heat pump. Part number HK32EA001, this board governs the entire defrost cycle — sensing outdoor coil conditions, initiating defrost at the correct intervals, and terminating the cycle once temperatures recover. When the board fails, the heat pump either never enters defrost (causing heavy frost or ice buildup on the outdoor coil) or becomes locked out entirely, leaving you with no heat. Cross-reference part numbers include: CEPL130524-01, CEBD430524-06A, 1173636, and 1177927.

• Function & Specs: Defrost timer/control board | Selectable defrost intervals (30, 60, 90 min) | 24V control circuit | Compatible with R-22 and R-410A heat pump configurations
• OEM vs Generic: This is a genuine Carrier factory-authorized part. OEM boards are manufactured to exact Carrier tolerances and maintain published system efficiency ratings and certifications. Generic boards often use off-spec relays and timing circuits that can cause erratic defrost behavior or shorten compressor life.
• Install Difficulty: 3/5 — Requires turning off power at the disconnect and breaker before accessing the control compartment. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, and a multimeter to verify 24V signal. Always photograph all wiring connections before removal. Test defrost heater and defrost thermostat before condemning the board.
• Warranty & Shipping: 1-year OEM factory warranty. In stock — ships same business day from our warehouse. Packed in an anti-static bag for safe transit.

Compatibility: Engineered as a direct drop-in replacement for Carrier model PH10JA024000AGAA heat pumps. Also fits select Bryant and Payne units sharing the same board platform. Verify your unit's part number on the data plate or existing board label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy.